Lovell was born in Quilmes, Buenos Aires, Argentina. His father, Santiago Alberto Lovell, who was brother of former boxer Guillermo Lovell, came from an Afro-Argentine, English Argentine family, and his mother came from an Italian Argentine family. Lovell came from a family of fighters. Pedro also has two brothers, the oldest being Alberto Jr., the other being Domingo Ismael Lovell. Lovell was a citizen of Argentina who decided to make his professional career in the United States. He traveled to California, where, after only a few fights, he became a big drawing card. While his brother, Alberto, Jr., was fighting in Argentina and knocking out the likes of Jose Manuel Ibar Urtain, Pedro racked up a string of nine straight knockouts. However, Pedro’s career was hampered by physical injuries and prostate problems.